3COW | pdb_00003cow

Crystal Structure of Mycobacterium Tuberculosis Pantothenate Synthetase at 1.8 Ang resolution- in complex with sulphonamide inhibitor 2

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3COV	PDB entry 3COV

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	final soak solution: 12% PEG3000, 150 mM Li2SO4, 0.1 M imidazole, 2% ethanol, 10% glycerol, 20 mM MgCl2, 2.5 mM of inhibitor 2, 5% v/v DMSO, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.42	α = 90
b = 71.24	β = 99.46
c = 81.81	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 315		2006-09-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.793	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.8	50	99.6	0.07	0.07	10.9	3.7	50396	50195		2.5	19.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.84	99.1		0.357	0.357		3.5	3323

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB entry 3COV	1.8	47.78	47962	47631	2550	99.31	0.16233	0.16233	0.15985	0.16	0.20889	0.21	RANDOM	23.573

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.854
r_dihedral_angle_4_deg	14.644
r_dihedral_angle_3_deg	13.055
r_dihedral_angle_1_deg	5.513
r_scangle_it	5.362
r_scbond_it	3.662
r_mcangle_it	3.544
r_mcbond_it	2.735
r_angle_refined_deg	1.453
r_nbtor_refined	0.307

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.854
r_dihedral_angle_4_deg	14.644
r_dihedral_angle_3_deg	13.055
r_dihedral_angle_1_deg	5.513
r_scangle_it	5.362
r_scbond_it	3.662
r_mcangle_it	3.544
r_mcbond_it	2.735
r_angle_refined_deg	1.453
r_nbtor_refined	0.307
r_symmetry_vdw_refined	0.247
r_nbd_refined	0.204
r_xyhbond_nbd_refined	0.145
r_symmetry_hbond_refined	0.117
r_chiral_restr	0.103
r_bond_refined_d	0.015
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4167
Nucleic Acid Atoms
Solvent Atoms	447
Heterogen Atoms	80

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.